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Cooled Stichtite

#634e66
Notes

Cooled Stichtite (#634E66) is a true violet with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (293°, 13%, 35%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#634e66
RGB
rgb(99, 78, 102)
HSL
hsl(293, 13%, 35%)
HWB
hwb(293 31% 60%)
OKLCH
oklch(45.4% 0.046 322.2)
P3
color(display-p3 0.3752 0.3090 0.3939)
HSV
hsv(293, 24%, 40%)
LAB
lab(36.10% 13.56 -10.57)
LCH
lch(36.10% 17.19 322.05)
CMYK
cmyk(3%, 24%, 0%, 60%)

Etymology

Cooled
adjective

Old English cōl, cool — past-participle of cool. As a color modifier, cooled implies a hushed-and-tone-shifted-and-cooled quality where the hue carries the visual register of evening-dusk-and-overcast gradually-cooled atmospheric-light color-temperature settled-state. Sits at the hushed-and-soft end of the grid, parallel to cooling and muted in usage.

Stichtite
noun

Rare violet-pink chromium-bearing mineral first described from the Dundas deposits of Tasmania in 1910 by Robert Sticht. Stichtite color refers to a polished Dundas stichtite-and-serpentine cabochon: a saturated, slightly cool deep violet with the silky finish of fibrous magnesium-chromium hydroxide-carbonate. The mineral is the chromium-substituted analog of brugnatellite, valued in lapidary work for its banded color.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#634e66
Original
#4c5367
Protanopia
#505665
Deuteranopia
#645056
Tritanopia
#545454
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
7.47:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.81:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##634E66
Display P3
Display P3
color(display-p3 0.3752 0.3090 0.3939)
Inside sRGBOKLCH chroma 0.046

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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